es.array.includes.js•794 B
'use strict';
var $ = require('../internals/export');
var $includes = require('../internals/array-includes').includes;
var fails = require('../internals/fails');
var addToUnscopables = require('../internals/add-to-unscopables');
// FF99+ bug
var BROKEN_ON_SPARSE = fails(function () {
// eslint-disable-next-line es/no-array-prototype-includes -- detection
return !Array(1).includes();
});
// `Array.prototype.includes` method
// https://tc39.es/ecma262/#sec-array.prototype.includes
$({ target: 'Array', proto: true, forced: BROKEN_ON_SPARSE }, {
includes: function includes(el /* , fromIndex = 0 */) {
return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
}
});
// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
addToUnscopables('includes');